If it's a 'harmonic' rattle or buzzing, it is probably the heat shield above your cat. Mine was broken at one of the mounts, took it to the mufler ship where they cut the whole thing off and threw it onto the pile of Tahoe heat shields.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.